Perhaps it's the winter time and me powering off my studio for a while - but Not all my Scope PCI cards are being recognized (I think I get my booster 15DSP and sometimes my main Pulsar 6 DSP but not all 2*15 and 1*6 cards ....

I opened my PC and fidgeted with the cards but havent got to a point where all were working ....

Any advice besides perhaps cleaning the connectors with solvent (as per GaryB's old advice) ?